The Digitally-Controlled Adjustable Bandwidth Tunable filter from KL Microwave has been developed for LTE and WiFi testing. Its passband can be tuned to any frequency range between 700 MHz and 6000 MHz. The system has a software interface for automated testing and can be accessed by a web-based user interface on devices such as smartphones, tablets and computers. The filter system measures It 27 x 31 x 22 and weighs about 200 lbs.